• 1 VPC

• 2 subnets

• 1 EKS cluster

• autoscaling workers with min 1, max 3 workers

• K8s RBAC enabled with 2 roles - eks-admin and eks-readonly

To expose Atlantis Service Classic LoadBalancer was issued from EKS and dns name was fetched by using terraform null resource provisioner "local-exec". Load balancer dns name was saved to lb_dns.txt file which was also used to create webhook for github repository so Atlantis service can monitor all of the below events: events = [ "issue_comment", "pull_request", "pull_request_review", "pull_request_review_comment" ]

Pull Request Opened to test Atlantis: karolisliutack/Luminor_Task_Testing#2

In this example, I'm deploying Atlantis on EKS. It takes about 15 minutes from start to finish.

• Terraform CLI installed

• AWS credentials configured.

• kubectl installed.

• Have settled GitHub Repository that you want Atlantis to monitor, in my case: https://github.com/karolisliutack/Luminor_Task_Testing

• After running terraform apply you will be asked to provide variables:

  • atlantis_github_orgWhitelist: in my case - github.com/karolisliutack/*

  • atlantis_github_repository: in my case - Luminor_Task_Testing

  • atlantis_github_secret: in my case - random generated

  • atlantis_github_token: in my case - personal github account token

  • atlantis_github_user: in my case - karolisliutack

• Clone this repository
• Edit terraform.tfvars to match your values.
• Run a terraform init to grab providers and modules.
• Run a terraform plan to view the plan. You will be asked to enter atlantis_github_secret, atlantis_github_user, atlantis_github_token, atlantis_github_orgWhitelist, atlantis_github_repository
• Run a terraform_apply provide variables and wait 10 - 15 minutes.

Note: If it fails for HTTP timeout while waiting to apply the Helm chart, retry terraform_apply

• Run aws eks --region us-east-2 update-kubeconfig --name dev-cluster to add the cluster context to your kubeconfig.
• Run kubectl get pods to ensure Atlantis deployed as expected.
• Run kubectl get svc to grab the AWS created DNS address for the Atlantis service.
• Go to your browser and navigate to http://<dns-address> *** use dns address from lb.dns.txt ***

• Run aws eks --region us-east-1 update-kubeconfig --name dev-cluster to add the context to your kubeconfig file.